I have exactly the same experience. My rewards are off 70% from yesterday. Due to the temperature today, I left one machine off, and ran two linux boxes, which combine usually for 820 Mh/s. and under last difficulty, from 0.010 to 0.015 per round. They are SEVERELY off today, with long disconnects!!!

From school today I checked the BTC Guild webpage. FREQUENTLY, my third worker (second box of two today) was at 80 - 90 Mh/s.  This is a steady worker, 280 Mh/s and goes all day, on a very steady internet connection. That means I have same experience as the other fellow -- LONG LONG timeouts.

I just got home. Yep-- 0 Mhashes/sec.  Scrolled up -- yep, this has been happening for the last EIGHT hours.

What is going on, Eleuthira??